DEZERTE

My friend just installed a new clutch on his 90gxl, I think its stock, or similar to the stock clutch? anyways, i drove the car and if u rev it in any gear, then shift and drop the clutch (not let it slip), the RPMs stay the same like mad slippage is taking place. And if u have it in any gear (even 5th) and stomp on the gas, the rpms will climb like mad but you wont go any faster. I dont know why the clutch is slipping so much, so i told him id post on the forum and ask about it... thanks for any input